org.apache.hadoop.hive.ql.io.parquet.vector

Class ParquetDataColumnReaderFactory.TypesFromInt32PageReader

java.lang.Object

org.apache.hadoop.hive.ql.io.parquet.vector.ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

org.apache.hadoop.hive.ql.io.parquet.vector.ParquetDataColumnReaderFactory.TypesFromInt32PageReader

All Implemented Interfaces:

ParquetDataColumnReader

Direct Known Subclasses:

ParquetDataColumnReaderFactory.TypesFromUInt32PageReader

Enclosing class:

ParquetDataColumnReaderFactory

public static class ParquetDataColumnReaderFactory.TypesFromInt32PageReader
extends ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

The reader who reads from the underlying int32 value value. Implementation is in consist with ETypeConverter EINT32_CONVERTER The data is read as integer from the reader, then validated, converted and returned as per the type defined in HMS.

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.io.parquet.vector.ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

dict, hiveDecimalWritable, hivePrecision, hiveScale, length, valuesReader

Constructor Summary

Constructors

Constructor and Description
TypesFromInt32PageReader(org.apache.parquet.column.Dictionary dict, int length, int precision, int scale)
TypesFromInt32PageReader(org.apache.parquet.column.values.ValuesReader realReader, int length, int precision, int scale)

Method Summary

Modifier and Type	Method and Description
byte[]	readChar()
byte[]	readChar(int id)
byte[]	readDecimal()
byte[]	readDecimal(int id)
double	readDouble()
double	readDouble(int id)
float	readFloat()
float	readFloat(int id)
long	readLong()
long	readLong(int id)
byte[]	readString()
byte[]	readString(int id)
byte[]	readVarchar()
byte[]	readVarchar(int id)

Methods inherited from class org.apache.hadoop.hive.ql.io.parquet.vector.ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

convertToBytes, enforceMaxLength, getDictionary, getPaddedString, initFromPage, isValid, readBoolean, readBoolean, readBytes, readBytes, readInteger, readInteger, readSmallInt, readSmallInt, readTimestamp, readTimestamp, readTinyInt, readTinyInt, readValueDictionaryId, skip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TypesFromInt32PageReader

public TypesFromInt32PageReader(org.apache.parquet.column.values.ValuesReader realReader,
                                int length,
                                int precision,
                                int scale)

TypesFromInt32PageReader

public TypesFromInt32PageReader(org.apache.parquet.column.Dictionary dict,
                                int length,
                                int precision,
                                int scale)

Method Detail

readLong

public long readLong()

Specified by:

readLong in interface ParquetDataColumnReader

Overrides:

readLong in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Returns:

the next Long from the page

readLong

public long readLong(int id)

Specified by:

readLong in interface ParquetDataColumnReader

Overrides:

readLong in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Parameters:

id - in dictionary

Returns:

the Long from the dictionary by id

readFloat

public float readFloat()

Specified by:

readFloat in interface ParquetDataColumnReader

Overrides:

readFloat in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Returns:

the next Float from the page

readFloat

public float readFloat(int id)

Specified by:

readFloat in interface ParquetDataColumnReader

Overrides:

readFloat in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Parameters:

id - in dictionary

Returns:

the Float from the dictionary by id

readDouble

public double readDouble()

Specified by:

readDouble in interface ParquetDataColumnReader

Overrides:

readDouble in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Returns:

the next Double from the page

readDouble

public double readDouble(int id)

Specified by:

readDouble in interface ParquetDataColumnReader

Overrides:

readDouble in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Parameters:

id - in dictionary

Returns:

the Double from the dictionary by id

readString

public byte[] readString()

Specified by:

readString in interface ParquetDataColumnReader

Overrides:

readString in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Returns:

the next String from the page

readString

public byte[] readString(int id)

Specified by:

readString in interface ParquetDataColumnReader

Overrides:

readString in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Parameters:

id - in dictionary

Returns:

the String from the dictionary by id

readVarchar

public byte[] readVarchar()

Specified by:

readVarchar in interface ParquetDataColumnReader

Overrides:

readVarchar in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Returns:

the next Varchar from the page

readVarchar

public byte[] readVarchar(int id)

Specified by:

readVarchar in interface ParquetDataColumnReader

Overrides:

readVarchar in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Parameters:

id - in dictionary

Returns:

the Varchar from the dictionary by id

readChar

public byte[] readChar()

Specified by:

readChar in interface ParquetDataColumnReader

Overrides:

readChar in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Returns:

the next Char from the page

readChar

public byte[] readChar(int id)

Specified by:

readChar in interface ParquetDataColumnReader

Overrides:

readChar in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Parameters:

id - in dictionary

Returns:

the Char from the dictionary by id

readDecimal

public byte[] readDecimal()

Specified by:

readDecimal in interface ParquetDataColumnReader

Overrides:

readDecimal in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Returns:

the next Decimal from the page

readDecimal

public byte[] readDecimal(int id)

Specified by:

readDecimal in interface ParquetDataColumnReader

Overrides:

readDecimal in class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

Parameters:

id - in dictionary

Returns:

the Decimal from the dictionary by id